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Mathematics 9 Online
OpenStudy (anonymous):

Find the length of a diagonal of a rectangle ABCD with vertices A (-3, 1) B(-1,3) C(3, -1) and D (1,3)

OpenStudy (anonymous):

OpenStudy (here_to_help15):

Are you in connections?

OpenStudy (anonymous):

No, im on Keystoneonline

OpenStudy (anonymous):

can you help???

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